Anton Vorontsov af1be5a578 blackfin: fix possible deadlock in decode_address() ... Oleg Nesterov found an interesting deadlock possibility: > sysrq_showregs_othercpus() does smp_call_function(showacpu) > and showacpu() show_stack()->decode_address(). Now suppose that IPI > interrupts the task holding read_lock(tasklist). To fix this, blackfin should not grab the write_ variant of the tasklist lock, read_ one is enough. Suggested-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2012-05-31 17:49:30 -07:00
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alpha	Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2012-05-24 16:17:30 -07:00
arm	arm: use clear_tasks_mm_cpumask()	2012-05-31 17:49:29 -07:00
avr32	Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2012-05-24 16:17:30 -07:00
blackfin	blackfin: fix possible deadlock in decode_address()	2012-05-31 17:49:30 -07:00
c6x	Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2012-05-24 16:17:30 -07:00
cris	cris: select GENERIC_ATOMIC64	2012-05-29 16:22:18 -07:00
frv	Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2012-05-24 16:17:30 -07:00
h8300	Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2012-05-24 16:17:30 -07:00
hexagon	Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2012-05-24 16:17:30 -07:00
ia64	Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2012-05-24 16:17:30 -07:00
m32r	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-05-24 13:29:46 -07:00
m68k	Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2012-05-24 16:17:30 -07:00
microblaze	Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze	2012-05-28 09:49:56 -07:00
mips	Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild	2012-05-28 10:32:28 -07:00
mn10300	Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2012-05-24 16:17:30 -07:00
openrisc	openrisc: use generic strnlen_user() function	2012-05-27 21:00:32 -07:00
parisc	Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2012-05-24 16:17:30 -07:00
powerpc	powerpc: use clear_tasks_mm_cpumask()	2012-05-31 17:49:29 -07:00
s390	avoid iput() from flusher thread	2012-05-28 09:54:45 -07:00
score	Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2012-05-24 16:17:30 -07:00
sh	sh: use clear_tasks_mm_cpumask()	2012-05-31 17:49:30 -07:00
sparc	sparc: use the new generic strnlen_user() function	2012-05-26 11:33:54 -07:00
tile	Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile	2012-05-25 15:59:38 -07:00
um	um/kernel/trap.c: port OOM changes to handle_page_fault()	2012-05-31 17:49:26 -07:00
unicore32	Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2012-05-24 16:17:30 -07:00
x86	mm: pmd_read_atomic: fix 32bit PAE pmd walk vs pmd_populate SMP race condition	2012-05-29 16:22:24 -07:00
xtensa	Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2012-05-24 16:17:30 -07:00
.gitignore
Kconfig	Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping	2012-05-25 09:18:59 -07:00